Sewer-pipe die.



No. 738,913. PATENTED SEPT. 15, 1903. I T. W. JONES & G. F.- KANAER.

SEWER PIPE DIE APPLICATION FILED JUNE 5, 1903..

no MODEL.

' ATTORNEY w: NORRIS vsrzns c0. Pnvrowma, WASHINGTON, e. c.

. ing the same open in dotted lines.

UNITED STATES Patented September 15, 1903.

PATENT OFFICE.

THOMAS w. JONES AND CHARLES F. KANAER, OF NEW PHILADELPHIA, OHIO.

SEWER-PIPE DIE.

SPECIFICATION forming part of Letters Patent No. 738,913, dated September 15, 1903. p

- Application filed June 5, 1903. Serial No. 160,162. (No model.)

To all whom it may concern.-

Be it known that we, THOMAS W. JONES and CHARLES F. KANAER, citizens of the United States, residing at New Philadelphia, in the county of. Tuscarawas and State of Ohio, have invented certain new and useful Improve ments in Sewer-Pipe Dies; and we do hereby declare that thefollowing is afull, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, andto the figures of reference marked thereon, in which- Figure 1 is a vertical section showing a portion of the upper cylinder and illustrating the position of the core with reference to the outer die-section, also showing the relative position of the hinge-section. Fig. 2 is a side elevation showing a sewer-pipe form and the hinged sections opened to release the same. is a transverse section of the outer die, showing the hinged sections closed, but illustr'a't- Fig. 4 is a View showing a portion of the hinged sections in proper relation to the outer die and illustrating the sections secured together.

The presentinvention has relation to sewerpipe dies; and it consists in the different parts and combination of parts hereinafter described, and particularlypointed out in the claims.

Similar numerals of reference indicate corresponding parts in all the figures of the drawings.

The object of the present invention is to provide a die for forming sewer-pipe by which the socket end of the finished pipev is located at the top end of the pipe when it leaves the die proper. Heretofore it has been customary to form the socket end of the die of the pipe upon the lower end, and when sewerpipes are so formed it is necessaryto turn them end to end, so that during the time they are being dried they will stand upon their non-socket ends. This is necessary in order to prevent injury to the socket, owing.

to the fact that when the pipe-section rests upon its socket end while in a plastic state it is liable to injure the socket to such an extent that it becomes diffic-ult to enter the nonsocket end of a pipe-section designed to be located in the socket.

Fig. 3

In the accompanying drawings, 1 represents the upper cylinder, which is constructed in the ordinary manner and is of course provided with an ordinary plunger for forcing the plastic clay downward and is provided with the usual spider for suspending the core 2 by means of the supporting-head 3. The upper or plunger cylinder and means for supporting the core 2 form no particular part of the present invention; but said parts are common to sewer-pipe machinery of the class to which the present invention pertains.

To the bottom or lower end of the cylinder 1 or its equivalent is attached the outer fixed die 4, which is preferably tapered from its upper end downward and its inner diameter corresponding with the-outer diameter of the finished sewer-pipe. The die 4 is provided with the lateral extending flange or ear 5,

which ear forms a support for the hinged diesections 6 and 7. Said hinged sections are semicircular, and when brought'together at their freeends they constitute the lower diesection, located just below the lower end of the die-section 4. The hinged members 6 and 7 constitute that portion of the die proper which forms the socket end of the finished pipe. hinged die-sections 6 and 7 are formed of a shape to correspond with the shape of the outer periphery of the sewer-pipe, and the lower portion of the core 2 is formed of ashape to correspond with the inner periphery of the finished sewer-pipe. The hinged sections 6 and 7 are provided with the-inward-projecting flanges 8 and 9 and the core with'the outward-extending flange 10, said flanges being so located with reference to each other that as the plastic clay is pressed or forced downward the portions of the clay located between the flanges 8, 9, and 10 will produce the socket end of the pipe and the portion of the pipe'located below said flanges will constitute the straight portion of the pipe.

In the formation of sewer-pipe it is necessary to provide a follower, such as 11, which follower is counterbalanced in the ordinary manner, and when no weight is upon the follower its normal position is in close proximity to the lower end of the core and the bot- The inner faces of the semicircletions 6 and 7; but as the pipe is formed the follower moves downward with the downward movement of the plastic clay until a pipe of the sufficient length is formed, after whichthe plunger is stopped in the usual manner and any further downward movement of the follower 11 will sever the top or upper end of the pipe from the plastic clay located between the die4 and the core 2 within said die 4, and in order to cause the pipe to be severed at the proper place the inward-extending flanges 12 and 13 are provided, the flange or rib 13 being located upon the core 2 and the flange or rib 12 upon the inner bottom portion of the die 4, by which arrangement a narrow strip of plastic clay is located between the flanges or ribs 12 or 13, and of course there being less material at this point the pipe will be severed just at the point where the flanges or ribs 12 and 13 are located. After the pipe has been severed from the main body of the plastic clay the pipe is finished and stands upon the follower 11, with the socket end up and in condition to be removed for the purpose of drying.

It is well understood that in the manufacture of sewerpipe that it is difficult to turn the finished sections upside down without injuring the contour of the pipe-section; but by our peculiar arrangement the necessity of turning the finished pipe upside down is done away with.

It will be understood that when the sewerpipe section is being formed the hinged diesectious 6 and 7 should be secured together at their free ends, which may be done in any mechanical manner. YVe have, however, illustrated the hinged die-section 6 provided with a teuou 14: and the hinged die-section 7 provided with the slotted ear 15, said parts being so located that when the die-sections 6 and 7 are brought together the tenon 14 will enter the slot 16, after which the key or wedge 17 can be placed through the slot 18.

It will be understood that in order to release the socket end of the pipe the hinged sections 6 and 7 must be separated, so as to free the pipe, and when so separated the pipe is free to drop or move downward and away from the forming-dies and core without injury to the pipe.

It will be understood that the hinged diesections 6 and 7 should move in a true horizontal plane, and in order to prevent any sagging of the hinged die-sections at any point within the limits of its movements, the segmental arms 19 are provided, which segmental arms are preferably formed integral with the die 4.

For the purpose of properly supporting the hinged sections 6 and 7 they are each provided with the cars 20, to which ears are attached the bars or yokes 21. The top or upper ends of the bars or yokes are provided with the antifriction-rollers 22, which antifriction-rollers travel upon the upper edges of the segmental arms 19.

For the purpose of limiting the outward movement of the hinged die-sections 6 and 7 the segmental arms 19 are provided with the stops 23, which stops are preferably located at the outer ends of the segmental arms, as illustrated in Fig. 2. For the purpose of limiting the inward movement of the hinged die-sections 6 and 7 they are each provided with the shoulders 24, which shoulders strike against the flange 25, formed upon the bottom end of the die 4, by which arrangement the hinged diesections are brought into proper position and their inward movement stopped at the proper point.

It will be understood that various sizes of dies and cores may be provided and must be provided to produce sewer-pipe of different diameters. It will also be understood that the.hiuged sections 6 and 7 should be properly connected together by means of the hinged bolt 26, which hinged bolt passes through apertures formed in the cars 27 and 28, the ears 27 being formed upon onehinged die-section and the ears 28 upon the opposite hinged die-section, thereby constituting an ordinary and common hinge, giving to each section 6 and 7a common center.

Having fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. The combination of a pipe-forming die having located therein a core, said core provided with an outward -extending flange, hinged die-sections provided with inwardprojecting flanges, beads formed upon the pipe-forming die, said beads located above the hinged die-sections, substantially as and for the purpose specified.

2. The combination of a pipe-forming die secured to a plunger-cylinder, said die supplied with segmental arms, die sections or members hinged to the pipe-forming die and provided with lugs, bars or yokes secured to the lugs formed upon the hinged die-sections, substantially as and for the purpose specified.

In testimony that we claim the above we have hereunto subscribed our names in the presence of two witnesses.

Witnesses:

NORMAN STOW, JOHN A. HIMES. 

